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Supraventricular tachycardia

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https://www.readbyqxmd.com/read/28110301/transcranial-measurement-of-cerebral-microembolic-signals-during-left-sided-catheter-ablation-with-the-use-of-different-approaches-the-potential-microembolic-risk-of-a-transseptal-approach
#1
Jin Iwasawa, Shinsuke Miyazaki, Takamitsu Takagi, Hiroshi Taniguchi, Hiroaki Nakamura, Hitoshi Hachiya, Yoshito Iesaka
AIMS: Subclinical brain damage due to microembolization could occur during catheter ablation procedures. We evaluated the microembolic signals (MESs) detected by transcranial Doppler during ablation of supraventricular tachycardias (SVTs) or idiopathic ventricular arrhythmias (VAs) with the use of different approaches. METHODS AND RESULTS: This study included 36 patients (23 men, 49 ± 21 years) who underwent catheter ablation of SVTs (n = 27) or idiopathic VAs (n = 9)...
January 20, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28109316/adenosine-induced-ventricular-fibrillation-in-a-structurally-normal-heart-a-case-report
#2
Christopher A Rajkumar, Norman Qureshi, Fu Siong Ng, Vasileios F Panoulas, Phang Boon Lim
BACKGROUND: Adenosine is the first-line pharmacotherapy for termination of supraventricular tachycardia through its action on the atrioventricular node. However, pro-arrhythmic effects of adenosine are also recognised, most notably in the presence of pre-excited atrial fibrillation. In this case report, we describe the induction of ventricular fibrillation in a patient with no demonstrable accessory pathway, nor any other structural heart disease. This rare, idiosyncratic reaction has never previously been reported and is of relevance given the widespread and routine use of adenosine in clinical practice...
January 22, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28100978/inflammation-and-rupture-of-a-congenital-pericardial-cyst-manifesting-itself-as-an-acute-chest-pain-syndrome
#3
Robert A Aertker, Benjamin Y C Cheong, Roberto Lufschanowski
We present the case of a 63-year-old woman with a remote history of supraventricular tachycardia and hyperlipidemia, who presented with recurrent episodes of acute-onset chest pain. An electrocardiogram showed no evidence of acute coronary syndrome. A chest radiograph revealed a prominent right-sided heart border. A suspected congenital pericardial cyst was identified on a computed tomographic chest scan, and stranding was noted around the cyst. The patient was treated with nonsteroidal anti-inflammatory drugs, and the pain initially abated...
December 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28099588/dobutamine-stress-echocardiography-safety-in-chagas-disease-patients
#4
Daniela do Carmo Rassi, Marcelo Luiz Campos Vieira, Rogerio Gomes Furtado, Fabio de Paula Turco, Luciano Henrique Melato, Viviane Tiemi Hotta, Colandy Godoy de Oliveira Nunes, Luiz Rassi, Salvador Rassi
Background: A few decades ago, patients with Chagas disease were predominantly rural workers, with a low risk profile for obstructive coronary artery disease (CAD). As urbanization has increased, they became exposed to the same risk factors for CAD of uninfected individuals. Dobutamine stress echocardiography (DSE) has proven to be an important tool in CAD diagnosis. Despite being a potentially arrhythmogenic method, it is safe for coronary patients without Chagas disease. For Chagas disease patients, however, the indication of DSE in clinical practice is uncertain, because of the arrhythmogenic potential of that heart disease...
January 16, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28079764/tako-tsubo-cardiomyopathy-complicated-by-paroxysmal-supraventricular-tachycardia
#5
Natale Daniele Brunetti, Riccardo Ieva, Michele Correale, Luisa De Gennaro, Francesco Santoro, Matteo Di Biase
We report a case of paroxysmal supraventricular tachycardia complicating Tako-Tsubo cardiomyopathy. We hypothesize that increased adrenergic tone supposedly underlying transient apical ballooning syndrome may facilitate the onset of paroxysmal supraventricular tachycardias in predisposed patients.
January 11, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28078383/effects-of-triple-cryoenergy-application-on-lesion-formation-and-coronary-arteries-in-the-developing-myocardium
#6
Ulrich Krause, Filipe D Abreu da Cunha, David Backhoff, Claudius Jacobshagen, Sophia Klehs, Heike E Schneider, Thomas Paul
To improve long-term outcome after cryoablation of substrates of supraventricular tachycardia, application of two and three consecutive freeze-thaw cycles has been performed. The effect of triple freeze-thaw cycles on lesion formation within developing myocardium and coronary arteries, however, has not been studied yet. In eight piglets (mean age 15 weeks, weight 15-20 kg), 30 cryolesions (three consecutive freeze-thaw cycles) were applied to the atrial aspect of both AV valve annuli (n = 18) as well as to ventricular myocardium below the valves (n = 12)...
January 11, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28073682/study-design-for-control-of-heart-rate-in-infant-and-child-tachyarrhythmia-with-heart-failure-using-landiolol-heartful-a-prospective-multicenter-uncontrolled-clinical-trial
#7
Naokata Sumitomo, Hitoshi Horigome, Masaru Miura, Hiroshi Ono, Hideaki Ueda, Kiyohiro Takigiku, Jun Yoshimoto, Naoki Ohashi, Tsugutoshi Suzuki, Koichi Sagawa, Hiroya Ushinohama, Kazuhiro Takahashi, Aya Miyazaki, Heima Sakaguchi, Mari Iwamoto, Motoki Takamuro, Chiho Tokunaga, Tetsuji Nagano
BACKGROUND: Persistent tachycardia in pediatric patients after congenital heart surgery further deteriorates their hemodynamic condition, and may become fatal. Therefore, immediate control of the tachycardia is mandatory in these patients. For this purpose, quick-acting, short-acting, titratable intravenous agents are required. However, there are no agents with such characteristics among the drugs approved for control of pediatric arrhythmias in Japan, and thus novel and effective medications for these patients are awaited...
January 7, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28063854/hospital-admissions-for-chest-pain-associated-with-cocaine-use-in-the-united-states
#8
Vikas Singh, Alex P Rodriguez, Badal Thakkar, Ghamshyambhai R Savani, Nileshkumar J Patel, Apurva O Badheka, Mauricio G Cohen, Carlos E Alfonso, Raul D Mitrani, Juan Viles-Gonzalez, Jeffrey J Goldberger
BACKGROUND: The outcomes related to chest pain associated with cocaine use and its burden on healthcare system are not well studied. METHODS: Data were collected from the Nationwide Inpatient Sample (2001 - 2012). Subjects were identified by using the ICD-9-CM codes. Primary outcome was a composite of mortality, myocardial infarction, stroke and cardiac arrest. RESULTS: We identified 363,143 admissions for cocaine induced chest pain. Mean age was 44...
January 4, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28058956/neuromuscular-blockade-and-inspiratory-breath-hold-during-stereotactic-body-radiation-therapy-for-treatment-of-heart-base-tumors-in-four-dogs
#9
Krista L Kelsey, Lyndsay N Kubicek, Nicholas J Bacon, Terry Torres, Sheilah A Robertson
CASE DESCRIPTION 4 dogs were examined because of pleural effusion and ventricular tachycardia, coughing and supraventricular tachycardia, appendicular osteosarcoma, and syncopal episodes. CLINICAL FINDINGS In all 4 dogs, a heart base tumor was identified by means of thoracic CT. TREATMENT AND OUTCOME In all 4 dogs, the heart base tumors were treated by means of stereotactic body radiation therapy. Dogs were anesthetized, and neuromuscular blockade was achieved with atracurium or vecuronium. A circle rebreathing system with 15 m (50 feet) of anesthetic tubing coursing through the vault wall was used to connect the patient to the anesthesia machine, which was located in the control room...
January 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28045841/a-novel-method-of-intraosseous-infusion-of-adenosine-for-the-treatment-of-supraventricular-tachycardia-in-an-infant
#10
Krista Helleman, Amrit Kirpalani, Rodrick Lim
Supraventricular tachycardia is a common arrhythmia faced by emergency physicians in the pediatric population. In most cases, antecubital intravenous access can be established, and adenosine can be administered in a rapid and timely fashion. The role and administration of intraosseous adenosine are poorly established. We describe a case where the administration of adenosine was successful via a mixed method administration.
January 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28045674/play-the-map-ablation-of-a-macro-reentrant-atrial-tachycardia-in-a-patient-after-senning-repair-for-transposition-of-the-great-arteries
#11
Emre Yalcinkaya, Firat Duru, Matthias Greutmann, Thomas Wolber
A 50-year-old male patient who had undergone Senning repair for transposition of the great arteries at the age of 7 years was referred to our electrophysiology lab with recurrent supraventricular tachycardias. Fast anatomical mapping of the systemic venous atrium was performed with the CARTO electroanatomical mapping system. Propagation mapping with animated dynamic maps facilitates the understanding of the underlying mechanism and provides visualization of reentrant circuits of tachycardias in cardiac chambers with native barriers and surgical scars...
January 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28039126/are-olympic-athletes-free-from-cardiovascular-diseases-systematic-investigation-in-2352-participants-from-athens-2004-to-sochi-2014
#12
Antonio Pelliccia, Paolo Emilio Adami, Filippo Quattrini, Maria Rosaria Squeo, Stefano Caselli, Luisa Verdile, Viviana Maestrini, Fernando Di Paolo, Cataldo Pisicchio, Roberto Ciardo, Antonio Spataro
CONTEXT: Olympic athletes represent model of success in our society, by enduring strenuous conditioning programmes and achieving astonishing performances. They also raise scientific and clinical interest, with regard to medical care and prevalence of cardiovascular (CV) abnormalities. OBJECTIVE: Our aim was to assess the prevalence and type of CV abnormalities in this selected athlete's cohort. DESIGN, SETTING AND PARTICIPANTS: 2352 Olympic athletes, mean age 25±6, 64% men, competing in 31 summer or 15 winter sports, were examined with history, physical examination, 12-lead and exercise ECG and echocardiography...
December 30, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28034941/yonder-kidney-transplant-supraventricular-tachycardia-contraception-and-dog-walking
#13
Ahmed Rashid
No abstract text is available yet for this article.
January 2017: British Journal of General Practice: the Journal of the Royal College of General Practitioners
https://www.readbyqxmd.com/read/28030653/ongoing-management-of-patients-with-supraventricular-tachycardia
#14
Sana M Al-Khatib, Richard L Page
No abstract text is available yet for this article.
December 28, 2016: JAMA Cardiology
https://www.readbyqxmd.com/read/28024553/sustained-performance-of-a-physicianless-system-of-automated-prehospital-stemi-diagnosis-and-catheterization-laboratory-activation
#15
Brian J Potter, Alexis Matteau, Samer Mansour, Charbel Naim, Mounir Riahi, Richard Essiambre, Martine Montigny, Isabelle Sareault, François Gobeil
BACKGROUND: Treatment times for primary percutaneous coronary intervention frequently exceed the recommended maximum delay. Automated "physicianless" systems of prehospital cardiac catheterization laboratory (CCL) activation show promise, but have been met with resistance over concerns regarding the potential for false positive and inappropriate activations (IAs). METHODS: From 2010 to 2015, first responders performed electrocardiograms (ECGs) in the field for all patients with a complaint of chest pain or dyspnea...
January 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28008694/a-narrow-qrs-tachycardia-and-cannon-a-waves-what-is-the-mechanism
#16
Hussam Ali, Gianluca Epicoco, Guido De Ambroggi, Pierpaolo Lupo, Sara Foresti, Riccardo Cappato
Regular narrow QRS tachycardia, particularly if well-tolerated, is usually considered a "benign" arrhythmia of a supraventricular origin. This case concerns an 82-year-old male with ischemic heart disease who presented with recurrent episodes of a narrow QRS tachycardia that was initially diagnosed and treated as atrial tachyarrhythmia. However, careful physical examination and ECG analysis established the correct diagnosis, and the patient was managed appropriately. Remarkably, the observation of irregular cannon A waves, and Lewis lead recording, confirmed atrioventricular dissociation during tachycardia and indicated its underlying mechanism...
December 23, 2016: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28007577/-supraventricular-tachycardia-in-newborns-and-its-association-with-gastroesophageal-reflux-disease
#17
Ángeles Fuertes, Ayham Alshweki, Alejandro Pérez-Muñuzuri, María-Luz Couce
INTRODUCTION: Supraventricular tachycardia (SVT) is the most common arrhythmia in the neonatal period, but its association with other triggering processes is not well established. The aim of the study was to analyse the possible relationship between neonatal SVT and gastroesophageal reflux disease (GERD), a condition which was recently linked to atrial arrhythmias. MATERIAL AND METHODS: A retrospective longitudinal descriptive study was conducted over a period of 5years on newborns who were diagnosed with SVT in a level III neonatal unit, assessing morphological aspects, associated symptoms, and treatments received...
December 19, 2016: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/28006998/supraventricular-tachycardia-during-the-first-year-of-life-is-subclinical-inflammation-the-trigger
#18
P P Bassareo, V Fanos, M Pala, L Antonucci, P Neroni, R Antonucci, G Mercuro
BACKGROUND: Neutrophil/lymphocyte ratio (NLR) and red cell distribution width (RDW) may be associated with the onset of arrhythmias in adults, thus underlining a possible inflammatory etiology. Paroxysmal supraventricular tachycardia (SVT) is the most frequent pathological tachycardia in childhood. AIMS: To verify NLR and RDW levels in a group of children (<1 year) affected by SVT with a structurally normal heart and without fever nor inflammatory diseases; to compare NLR and RDW before and after SVT resolution, to verify whether the latter was related with the reduction in inflammatory state; to identify -in SVT subtypes caused by a re-entry mechanism- an NLR and RDW cut-off point beyond which adenosine was ineffective in preventing SVT recurrence...
December 23, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27995288/nadolol-for-treatment-of-supraventricular-tachycardia-in-infants-and-young-children
#19
Johannes C von Alvensleben, Martin J LaPage, Regine Caruthers, David J Bradley
Supraventricular tachycardia (SVT) is a common infant arrhythmia, for which beta-blockers are frequently chosen as therapy. Propranolol is a common choice though it is dosed every 6-8 h. We reviewed the clinical results of treating infant SVT with an extemporaneous preparation of nadolol. Retrospective cohort study of patients under 2 years old receiving nadolol for SVT at a single center. Patients were ascertained by patient and pharmacy databases. Twenty-eight infants received nadolol, of whom 25 had regular narrow complex tachycardia, 2 atrial flutter, and 1 focal atrial tachycardia...
December 19, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27989682/catheter-ablation-of-supraventricular-tachycardia-in-d-transposition-of-the-great-arteries-after-corrective-surgery
#20
EDITORIAL
Yoshifusa Aizawa
No abstract text is available yet for this article.
December 15, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
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